Progress in optical testing of prototype mirrors for JPL’s Precision Segmented Reflector (PSR) Program.

Abstract

jpl's Precision Segmented Reflector (PSR) program is developing enabling technologies for large space telescopes employing segmented optics, and in particular, lightweight, thermally-stable mirrors. NASA astrophysics missions1 operating at sub-millimeter wavelengths serve as the primary focus for this technology development program which began in 1987.